Intelligent color-changing goggles and universal protective helmet

Abstract

The invention discloses intelligent color-changing goggles and a universal protective helmet. The intelligent color-changing goggles comprise a transparent lens, a liquid crystal color-changing film, an optical sensor, a control panel and a lens support arm, wherein the liquid crystal color-changing film is attached to the transparent lens, the optical sensor is installed on the transparent lens, the lens supporting arms comprise the first lens supporting arm and the second lens supporting arm which are fixed to the two sides of the transparent lens respectively, and the control panel is installed in one lens supporting arm. And the control panel is respectively connected with the light sensor and the liquid crystal color-changing film. According to the invention, the observation use and protection requirements of different pilots under different working conditions can be met.

Description

Technical Field

[0001] The invention relates to the technical field of goggles preparation, and in particular to intelligent color-changing goggles and a universal protective helmet. Background Art

[0002] When pilots are flying to perform missions, vision is the most important way for pilots to obtain external information. On the one hand, when there is sunlight, the air at high altitudes is thin, with very little moisture and dust, which cannot reflect and scatter sunlight. Therefore, objects directly exposed to sunlight reflect glaringly, while objects that are not exposed to sunlight are dim. The strong light and glare produced by dazzling objects can cause visual fatigue, discomfort, and even temporary blindness to pilots. On the other hand, when pilots are flying in all-weather conditions, it is difficult for them to observe targets and obtain external information in low-visibility environments such as at night, which in turn hinders pilots from observing instruments and searching for targets. Therefore, pilots need to install goggles on their protective helmets to protect their vision.

[0003] Pilots have different requirements for the light transmittance of goggles under different ambient light intensities. Existing protective helmets are usually equipped with filters with a single light transmittance, or dual-lens goggles equipped with filters and transparent lenses. Although they can meet the pilots' protection needs for low visibility and high-intensity sunlight, the helmets are heavy, resulting in poor wearing comfort, and different functional lenses need to be switched manually. The goggles cannot be actively adjusted adaptively with the light intensity, and the visual comfort and human-machine efficiency are poor, which cannot meet the needs of the intelligent development of pilots' individual protective equipment. Therefore, there is an urgent need for a method for preparing intelligent color-changing goggles for pilot protective helmets and pilot protection to meet the observation, use and protection needs of different pilots under different working conditions. Summary of the invention

[0004] The main purpose of the present invention is to provide a kind of intelligent color-changing goggles and a universal protective helmet to meet the observation, use and protection needs of different pilots under different working conditions.

[0005] The technical solution adopted by the present invention is: a smart photochromic goggles, including a transparent lens, a liquid crystal photochromic film, a light sensor, a control board and a lens arm; wherein the liquid crystal photochromic film is bonded to the transparent lens, the light sensor is installed on the transparent lens, the lens arm includes a first lens arm and a second lens arm, which are respectively fixed on both sides of the transparent lens, the control board is installed in one of the lens arms, and the control board is respectively connected to the light sensor and the liquid crystal photochromic film.

[0006] Preferably, the liquid crystal color-changing film comprises an upper substrate, an upper conductive layer, an upper insulating layer, an upper orientation layer, a lower orientation layer, a lower insulating layer, a lower conductive layer, and a lower substrate which are laminated in sequence. A spacer is provided between the upper orientation layer and the lower orientation layer, and the spacer seals the dichroic dye and the liquid crystal.

[0007] Preferably, the materials used for the upper substrate and the lower substrate include PET and PC, the materials used for the upper conductive layer and the lower conductive layer include thick tin-doped indium oxide; the materials used for the upper insulating layer and the lower insulating layer include silicon dioxide; the materials used for the upper orientation layer and the lower orientation layer include polyimide.

[0008] Preferably, the method for making the liquid crystal color-changing film includes: using a mold that fits with a transparent lens to make an upper substrate and a lower substrate; plating a conductive film on the concave surface of the upper substrate and the convex surface of the lower substrate; coating a liquid crystal orientation material on the conductive film and curing it; coating a spacer on the cured liquid crystal orientation material, bonding the upper substrate and the lower substrate together through the spacer and reserving an injection port; in a vacuum environment, injecting a dichroic dye and a liquid crystal through the injection port, and sealing the injection port.

[0009] Preferably, the transparent lens is a spherical or curved surface, and the light transmittance is greater than a preset value A 1 .

[0010] Preferably, the control board is electrically connected to the light sensor and the liquid crystal color-changing film. Further, the light sensor and the control board are connected via a transparent flexible circuit.

[0011] Preferably, the convex surface of the liquid crystal color-changing film is bonded to the concave surface of the transparent lens by transparent optical adhesive.

[0012] Preferably, if the control board is installed in the second lens arm, the second lens arm is provided with a groove, a second lens arm cover and an arm cover fixing screw, and the arm cover fixing screw passes through the control board to fix the second lens arm cover on the top of the groove.

[0013] Preferably, a key switch is provided on the control panel. If the key switch is pressed for a time longer than a preset time T 0 And below the preset time T 1 , the goggles enter the automatic light-sensing mode; after the goggles enter the automatic light-sensing mode, if the button switch is pressed for a time longer than the preset time T 1 And below the preset time T 2 When the goggles are in the automatic light-sensing mode or the manual adjustment mode, if the button switch is pressed for more than the preset time T 3 , the goggles enter shutdown state.

[0014] Preferably, in the automatic photosensing mode, the goggles adjust the transmittance according to the light signal sensed by the light sensor; in the manual adjustment mode, the goggles include a plurality of gears with different transmittances, and the transmittance is adjusted by switching the gears by pressing a button switch.

[0015] Preferably, the specific method for the goggles to adjust the transmittance according to the light signal sensed by the light sensor includes: the light sensor senses the light signal and converts it into an electrical signal and transmits it to the control board; the control board looks up the table according to the received electrical signal to obtain the corresponding light intensity, outputs a control voltage, and controls the transmittance of the liquid crystal color-changing film, wherein the table is a pre-set correspondence between the electrical signal and the light intensity.

[0016] The present invention also provides a universal protective helmet, the detachable module of the helmet includes the above-mentioned intelligent color-changing goggles.

[0017] The beneficial effects of the present invention are as follows: 1. It provides an intelligent color-changing goggles, which can automatically adjust the light transmittance of the liquid crystal color-changing film according to the external light intensity, so as to avoid strong light and dark light affecting the visual function of the pilot.

[0018] 2. Set the manual adjustment mode, that is, change the light transmittance of the goggles by pressing buttons to meet the pilot's personalized needs.

[0019] 3. The transparent lens of the smart photochromic goggles and the liquid crystal photochromic film bonded thereto are spherical or curved surfaces. Compared with the flat or single-curvature cylindrical structures in the prior art, they can better meet the use requirements and the requirements for integration with general helmets, and the preparation process is simple and easy to operate.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 Schematic diagram of the exploded view of the smart color-changing goggles according to an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the composition structure of a liquid crystal color-changing film according to an embodiment of the present invention;

[0024] Figure 3 The present invention is a flow chart of the production of a liquid crystal color-changing film according to an embodiment of the present invention;

[0025] Figure 4 The figure is a flow chart of an assembly method of the smart color-changing goggles according to an embodiment of the present invention.

[0026] Figure numerals: 1. transparent lens; 2. liquid crystal color-changing film; 201. upper substrate; 202. upper conductive layer; 203. upper insulating layer; 204. upper orientation layer; 205. lower orientation layer; 206. lower insulating layer; 207. lower conductive layer; 208. lower substrate; 209. dichroic dye; 2010. liquid crystal; 2011. spacer; 3. light sensor; 4. transparent flexible circuit; 5. control board; 6. switch; 7. transparent optical glue; 8. first lens arm; 9. second lens arm; 10. second arm cover; 11. arm cover fixing screw; 12. arm fixing screw. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] It should be noted that the illustrations provided in the embodiments of the present invention are only used to illustrate the basic concept of the present invention in a schematic manner. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout type may also be more complicated.

[0029] In the present invention, it is also necessary to explain that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, if the terms "first" and "second" appear, they are only used for description and distinction purposes, and cannot be understood as indicating or implying relative importance.

[0030] Example 1

[0031] This embodiment provides a kind of intelligent color-changing goggles, such as Figure 1 As shown, it includes a transparent lens 1, a liquid crystal color-changing film 2, a light sensor 3, a control panel 5 and a lens support arm, wherein the transparent lens 1 and the liquid crystal color-changing film 2 are arc-shaped, including a concave surface and a convex surface.

[0032] Among them, the assembly and connection relationship of each component is as follows: the convex surface of the liquid crystal color-changing film 2 is fitted with the concave surface of the transparent lens 1, the light sensor 3 is installed on the convex surface of the transparent lens 1, the lens arm includes a first lens arm 8 and a second lens arm 9, which are respectively fixed on both sides of the transparent lens 1 by arm fixing screws 12, and the control board 5 is installed in the second lens arm 9. Of course, the control board 5 can also be installed in the first lens arm 8.

[0033] Furthermore, if Figure 2 As shown, the liquid crystal color-changing film 2 includes an upper substrate 201, an upper conductive layer 202, an upper insulating layer 203, an upper orientation layer 204, a lower orientation layer 205, a lower insulating layer 206, a lower conductive layer 207, a lower substrate 208, a dichroic dye 209, a liquid crystal 2010, and a spacer 2011;

[0034] The structures of the various parts of the liquid crystal color-changing film 2 are as follows: the upper substrate 201, the upper conductive layer 202, the upper insulating layer 203 and the upper orientation layer 204 are closely attached in sequence, the lower orientation layer 205, the lower insulating layer 206, the lower conductive layer 207 and the lower substrate 208 are closely attached in sequence, the upper orientation layer 204 and the lower orientation layer 205 are connected by a spacer 2011, and the spacer 2011 seals the dichroic dye 209 and the liquid crystal 2010. The materials selected for the upper substrate 201 and the lower substrate 208 include PET and PC, the materials selected for the upper conductive layer 202 and the lower conductive layer 207 include thick tin-doped indium oxide; the materials selected for the upper insulating layer 203 and the lower insulating layer 206 include silicon dioxide; the materials selected for the upper orientation layer 204 and the lower orientation layer 205 include polyimide.

[0035] Furthermore, in this embodiment, the spherical radius of the transparent lens 1 is 128 mm, and the light transmittance is greater than 92%.

[0036] Furthermore, the light sensor 3 and the control board 5 are connected via a transparent flexible circuit for transmitting the electrical signal converted by the light sensor 3 to the control board 5. The control board 5 determines the light intensity according to the corresponding relationship between the preset light sensing voltage and the light intensity, and controls the output voltage to change the transmittance of the liquid crystal color-changing film 2 to adaptively match the ambient light intensity.

[0037] Furthermore, the convex surface of the liquid crystal color-changing film 2 is bonded to the concave surface of the transparent lens 1 through a transparent optical adhesive 7 .

[0038] Furthermore, the second lens support arm 9 comprises a groove, a second support arm cover 10 and an support arm cover fixing screw 11, and the support arm cover fixing screw 11 passes through the control board 5 to fix the second support arm cover 10 on the top of the groove.

[0039] Furthermore, the control panel 5 is provided with a key switch 6 for controlling the on / off of the goggles and adjusting the working mode. 0 After the goggles enter the automatic light-sensing mode, if the time of pressing the button switch 6 is longer than the preset time T 1 And below the preset time T 2 When the goggles are in the automatic light-sensing mode or the manual adjustment mode, if the time of pressing the button switch 6 exceeds the preset time T 0 , the goggles enter the shutdown state. In this embodiment, T 0 Take 5s,T 1 Take 1s, T 2 Take 2s.

[0040] Furthermore, in the automatic light sensing mode, the goggles adjust the light transmittance according to the light signal sensed by the light sensor 3. In the manual adjustment mode, the goggles include a plurality of gears with different light transmittances. In this embodiment, the goggles have a total of 5 gears with different light transmittances. When the key switch 6 is pressed, the goggles switch to a gear with a lower light transmittance.

[0041] Example 2

[0042] This embodiment provides another type of intelligent photochromic goggles, which is different from the intelligent photochromic goggles in embodiment 1 in that the control panel 5 in this embodiment is mounted on the first lens support arm 8 on the other side of the second lens support arm 9.

[0043] The first lens support arm 8 is provided with a groove, a right support arm cover and an arm cover fixing screw 11. The arm cover fixing screw 11 passes through the control board 5 to fix the right support arm cover on the top of the groove.

[0044] The first lens support arm 8 and the second lens support arm 9 are respectively distributed on the left and right sides of the transparent lens 1. The arrangement of this embodiment and embodiment 1 at the same time can facilitate people with different hand-powers to control and adjust the smart color-changing goggles.

[0045] Example 3

[0046] This embodiment provides a method for assembling smart color-changing goggles, the process is as follows: Figure 4 As shown, the method is used to assemble the smart color-changing goggles in Example 1. It includes:

[0047] S1, making liquid crystal color-changing film 2, the specific process is as follows Figure 3 shown.

[0048] S101, using a mold that fits the concave surface of the transparent lens 1 to make an upper substrate 201 and a lower substrate 208,

[0049] Specifically, in this embodiment, the manufacturing material is 75 micron thick PET material or PC material, and the manufacturing method is thermoforming.

[0050] S102 , coating a conductive film on the concave surface of the upper substrate 201 and the convex surface of the lower substrate 208 .

[0051] Specifically, before plating the conductive film, it is necessary to first use an ultrasonic cleaner to clean the concave surface of the upper substrate 201 and the convex surface of the lower substrate 208, and wipe them with a dust-free cloth and a wiper to clean up residual foreign matter. Finally, send them into a dryer for drying, and then carry out the process of plating the conductive film. In this embodiment, the conductive film is selected from a 0.1-micron thick tin-doped indium oxide conductive film, and the method of plating the conductive film is vacuum evaporation.

[0052] S103 , plating an insulating layer on the conductive film on the concave surface of the upper substrate 201 and the conductive film on the convex surface of the lower substrate 208 .

[0053] Specifically, in this embodiment, the method of plating the insulating layer is magnetron sputtering, and the material of the insulating layer is 0.1 micron thick silicon dioxide.

[0054] S104 , coating a liquid crystal alignment material on the insulating layer on the concave surface of the upper substrate 201 and the insulating layer on the convex surface of the lower substrate 208 and curing the material.

[0055] Specifically, in this embodiment, a 0.1 mm thick polyimide film is selected as the orientation material, and low-temperature spin coating is selected as the coating method. After the spin coating is completed, pre-curing is performed to evaporate the solvent, and then the polyimide is fully cured in a curing furnace.

[0056] S105 , place the lower substrate 208 with the convex surface facing upward, apply the spacer 2011 on the solidified liquid crystal alignment material, attach the upper substrate 201 with the concave surface facing downward on the spacer 2011 , reserve an injection port on the spacer 2011 , and then solidify the spacer 2011 .

[0057] Specifically, after the spacer 2011 is applied, pre-curing is first performed to remove bubbles in the spacer 2011, and then curing is performed. In this embodiment, the method for pre-curing the liquid crystal alignment material is ultraviolet irradiation.

[0058] S106 . In a vacuum environment, inject the dichroic dye 209 and the liquid crystal 2010 through the injection port, and seal the injection port.

[0059] S2. Use transparent optical adhesive 7 to bond the convex surface of the liquid crystal color-changing film 2 and the concave surface of the transparent lens 1 together.

[0060] S3. Use the arm fixing screws 12 to fix the first lens arm 8 and the second lens arm 9 on both sides of the transparent lens 1.

[0061] S4. Use the arm cover fixing screw 11 to pass through the control board 5 to fix the second arm cover 10 on the top of the groove of the second lens arm 9.

[0062] Example 4

[0063] This embodiment provides a method for using smart color-changing goggles, which is suitable for the smart color-changing goggles in Embodiment 1 and Embodiment 2. It includes:

[0064] Press and hold the button switch 6 for 5 seconds to start the automatic light-sensing mode of the smart photochromic goggles.

[0065] In the automatic photosensitivity mode of the smart photochromic goggles, short press the button switch 6 for 2 seconds to switch to the manual adjustment mode. In this mode, the smart photochromic goggles have five different light transmittance levels. Press the button switch 6 to switch the light transmittance level as needed.

[0066] When you finish using it, press and hold the switch 6 for 5 seconds to turn off the smart color-changing goggles.

[0067] Example 5

[0068] This embodiment provides a universal protective helmet, the detachable module of the helmet includes the smart color-changing goggles described in any one of claims 1-9.

[0069] In summary, the present invention provides a kind of intelligent color-changing goggles and a universal protective helmet, wherein the goggles can automatically adjust the transmittance according to the external light intensity, and can also allow the pilot to manually adjust the transmittance according to his own needs, thereby meeting the observation, use and protection needs of different pilots under different working conditions.

[0070] It should be pointed out that, according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, and two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present invention.

[0071] The order of execution of each step in the above embodiment does not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0072] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A kind of intelligent color-changing goggles, characterized in that: The invention comprises a transparent lens (1), a liquid crystal color-changing film (2), a light sensor (3), a control board (5) and a lens support arm; wherein the liquid crystal color-changing film (2) is bonded to the transparent lens (1), the light sensor (3) is mounted on the transparent lens (1), the lens support arm comprises a first lens support arm (8) and a second lens support arm (9), which are respectively fixed on both sides of the transparent lens (1), the control board (5) is mounted in one of the lens support arms, and the control board (5) is respectively connected to the light sensor (3) and the liquid crystal color-changing film (2).

2. The intelligent color-changing goggles according to claim 1, characterized in that: The liquid crystal color-changing film (2) comprises an upper substrate (201), an upper conductive layer (202), an upper insulating layer (203), an upper orientation layer (204), a lower orientation layer (205), a lower insulating layer (206), a lower conductive layer (207), and a lower substrate (208) which are laminated in sequence; A spacer (2011) is provided between the upper orientation layer (204) and the lower orientation layer (205), and a dichroic dye (209) and a liquid crystal (2010) are sealed in the spacer (2011).

3. The intelligent color-changing goggles according to claim 2, characterized in that: The materials selected for the upper substrate (201) and the lower substrate (208) include PET or PC; the materials selected for the upper conductive layer (202) and the lower conductive layer (207) include thick tin-doped indium oxide; the materials selected for the upper insulating layer (203) and the lower insulating layer (206) include silicon dioxide; and the materials selected for the upper orientation layer (204) and the lower orientation layer (205) include polyimide.

4. The intelligent color-changing goggles according to claim 1, characterized in that: The transparent lens (1) is a spherical surface or a curved surface, and has a light transmittance greater than a preset value A1.

5. The intelligent color-changing goggles according to claim 1, characterized in that: The connection between the control board (5) and the light sensor (3) and the liquid crystal color-changing film (2) is an electrical connection.

6. The intelligent color-changing goggles according to claim 1, characterized in that: If the control panel (5) is installed in the second lens support arm (9), the second lens support arm (9) is provided with a groove, a second lens support arm cover (10) and an arm cover fixing screw (11), and the arm cover fixing screw (11) passes through the control panel (5) to fix the second lens support arm cover (10) on the top of the groove.

7. The intelligent color-changing goggles according to claim 1, characterized in that: The control panel (5) is provided with a key switch (6); if the time for pressing the key switch (6) is longer than a preset time T0, the goggles enter an automatic light-sensing mode; after the goggles enter the automatic light-sensing mode, if the time for pressing the key switch (6) is longer than a preset time T1 and shorter than a preset time T2, the goggles switch to a manual adjustment mode; when the goggles are in the automatic light-sensing mode or the manual adjustment mode, if the time for pressing the key switch (6) exceeds a preset time T0, the goggles enter a shutdown state.

8. The intelligent color-changing goggles according to claim 7, characterized in that: In the automatic light-sensing mode, the goggles adjust the light transmittance according to the light signal sensed by the light sensor (3); in the manual adjustment mode, the goggles include a plurality of gears with different light transmittances, and the light transmittance is adjusted by switching the gears by pressing the button switch (6).

9. The intelligent color-changing goggles according to claim 8, characterized in that: The specific method for adjusting the light transmittance of the goggles according to the light signal sensed by the light sensor (3) comprises: the light sensor (3) senses the light signal, converts it into an electrical signal and transmits it to the control board (5); the control board (5) obtains the corresponding light intensity by looking up a table according to the received electrical signal, outputs a control voltage, and controls the light transmittance of the liquid crystal color-changing film (2); the table is a pre-set correspondence between the electrical signal and the light intensity.

10. A universal protective helmet, characterized in that: The detachable module of the helmet includes the smart color-changing goggles described in any one of claims 1-9.

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